@facebook unveiled “Reactions”, its set of emojis that convey feelings such as anger, sadness, and love. However, the buttons, an extension of its like button, will be tested in Ireland and Spain before rolling out globally. Emojis were used because Facebook felt they “convey the spirit or the meaning of the reactions at a glance and facial expressions are universal.” Facebook also said, ““Reactions gives businesses a really crisp way of understanding on a multi-dimensional level how people are feeling about the things that they’re posting.” Thus, “Reactions” can be a more accurate way to measure sentiment for businesses. - Link